Packet #3432563 Success

NEIGHBORINFO_APP packet from K2XAP Gateway (XAPg) to !00000001

1
Total Receptions
1
Unique Gateways
0
Hop Count
144
Payload Bytes
Packet Information
Database ID: 3432563
Mesh Packet ID: 0x39743129
Used for correlation across gateways
Timestamp: 2025-12-11 14:42:14 UTC
From Node: K2XAP Gateway (XAPg)
To Node: !00000001 (0001)
Success: Processed
Protocol: NEIGHBORINFO_APP
Port: 71
Gateway: K2XAP Gateway (XAPg)
Channel: LongFast
RSSI: Unknown
SNR: Unknown
Hop Info: 0/0 hops
Start: 0, Limit: 0
Relay Node: 79 XAPg
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions
Payload Data
Protocol: NEIGHBORINFO_APP
Size: 144 bytes
Decoded: Yes
Decoded Data:
Neighbor Information Report
Reporting Node: K2XAP Gateway (XAPg)
Last Sent By: K2XAP Gateway (XAPg)
Broadcast Interval:14400 seconds
Neighbors Found:10
10

Active Neighbors

Neighbor Details
Neighbor Node SNR Last Heard Broadcast Interval Signal Quality
IndustryCity cc42 (cc42) -21.0 dB Unknown Unknown Poor
Unexplained Location UE-941712 (SCP2) 6.2 dB Unknown Unknown Excellent
Poncho@Solar! | nyme.sh (p@s!) -9.0 dB Unknown Unknown Poor
!d193f615 (f615) -18.8 dB Unknown Unknown Poor
SouthSlope cdef (cdef) -16.5 dB Unknown Unknown Poor
ClaremontWx.net (CmWx) 5.8 dB Unknown Unknown Excellent
Penn Plaza (Penn) -8.5 dB Unknown Unknown Poor
K2XAP / nyme.sh (XAP) 6.2 dB Unknown Unknown Excellent
WestFacing (VYL0) -13.8 dB Unknown Unknown Poor
Casa de Timoun (Titi) -12.2 dB Unknown Unknown Poor
This neighbor information was reported by K2XAP Gateway (XAPg) and shows which nodes it can directly communicate with and their signal quality.
Raw Packet Analysis
Complete field breakdown and MQTT privacy/exposure analysis
Packet Structure
MQTT Packet Flow:
ServiceEnvelope (MQTT layer) → MeshPacket (Mesh layer) → Decoded Payload (Application data)
Total Size:144 bytes
Gateway:!cb9be279
Channel:LongFast
Payload Type:NEIGHBORINFO_APP
Hop Count:Unknown / Unknown
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...
Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !cb9be279
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (144 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3415990905
Source node ID 		uint32
to 1
Target node ID 		uint32
decoded.portnum 71
NEIGHBORINFO_APP 		enum
decoded.payload_length 144 bytes size
hop_limit Not set uint32
hop_start Not set uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi Not set int32
rx_snr Not set float
rx_time 1765464273
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack False
No ACK requested 		bool
priority 10
Packet priority level 		enum
delayed Not set enum
channel Not set uint32
pki_encrypted False
Standard encryption 		bool
next_hop Not set uint32
relay_node 121
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765464134.7666712
Unix timestamp 		uint32
MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Direct Message
Privacy Features:
  • ✓ Direct LoRa transmission (not via MQTT)
  • ✓ Targeted to specific node
  • ✓ Gateway node ID tracked
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
MQTT-Specific Fields
Gateway ID: !cb9be279
Zero Hop Policy: Enabled
Direct gateway connection
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NEIGHBORINFO_APP
Size:144 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "node_id": 3415990905, "last_sent_by_id": 3415990905, "node_broadcast_interval_secs": 14400, "neighbors": [ { "node_id": 3261320258, "snr": -21.0, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "IndustryCity cc42 (cc42)" }, { "node_id": 426549624, "snr": 6.25, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "Unexplained Location UE-941712 (SCP2)" }, { "node_id": 71025650, "snr": -9.0, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "Poncho@Solar! | nyme.sh (p@s!)" }, { "node_id": 3516134933, "snr": -18.75, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "!d193f615" }, { "node_id": 1516883439, "snr": -16.5, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "SouthSlope cdef (cdef)" }, { "node_id": 659761751, "snr": 5.75, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "ClaremontWx.net (CmWx)" }, { "node_id": 1213356233, "snr": -8.5, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "Penn Plaza (Penn)" }, { "node_id": 2334104039, "snr": 6.25, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "K2XAP / nyme.sh (XAP)" }, { "node_id": 2697781576, "snr": -13.75, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "WestFacing (VYL0)" }, { "node_id": 314088833, "snr": -12.25, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "Casa de Timoun (Titi)" } ], "neighbor_count": 10, "node_name": "K2XAP Gateway (XAPg)", "last_sent_by_name": "K2XAP Gateway (XAPg)" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!cb9be279", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3415990905, "to": 1, "id": 963916073, "rx_time": 1765464273, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 0, "hop_start": 0, "via_mqtt": 0, "want_ack": 0, "priority": 10, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 121, "tx_after": 0, "decoded": { "portnum": 71, "payload": "08f9c4efdc0c10f9c4efdc0c18c070220b08c2988f930c150000a8c1220b08f8c2b2cb01150000c840220a08f287ef2115000010c1220b0895eccf8c0d15000096c1220b08ef9ba7d30515000084c1220b08d7d4ccba02150000b840220b08c9b1c9c20415000008c1220b08e7b3fed808150000c840220b08c8c2b3860a1500005cc1220b0881bbe2950115000044c1", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "node_id": 3415990905, "last_sent_by_id": 3415990905, "node_broadcast_interval_secs": 14400, "neighbors": [ { "node_id": 3261320258, "snr": -21.0 }, { "node_id": 426549624, "snr": 6.25 }, { "node_id": 71025650, "snr": -9.0 }, { "node_id": 3516134933, "snr": -18.75 }, { "node_id": 1516883439, "snr": -16.5 }, { "node_id": 659761751, "snr": 5.75 }, { "node_id": 1213356233, "snr": -8.5 }, { "node_id": 2334104039, "snr": 6.25 }, { "node_id": 2697781576, "snr": -13.75 }, { "node_id": 314088833, "snr": -12.25 } ], "type": "protobuf", "portnum": "NEIGHBORINFO_APP", "message_class": "NeighborInfo" } } } }
Raw Packet Data (144 bytes)
08f9c4efdc0c10f9c4efdc0c18c070220b08c2988f930c150000a8c1220b08f8c2b2cb01150000c840220a08f287ef2115000010c1220b0895eccf8c0d15000096c1220b08ef9ba7d30515000084c1220b08d7d4ccba02150000b840220b08c9b1c9c20415000008c1220b08e7b3fed808150000c840220b08c8c2b3860a1500005cc1220b0881bbe2950115000044c1
Hex Analysis:
Size:144 bytes
Format:Protobuf (Protocol Buffers)
Encoding:Binary with varint and length-delimited fields
This is the raw protobuf-encoded payload as received from MQTT. The structure follows the Meshtastic protobuf schema definitions.
All Receptions
All gateways that received this packet
Correlation: Using Mesh Packet ID
Gateway Time Offset RSSI SNR Hops Relay Channel Timestamp Actions
K2XAP Gateway (XAPg) Primary 0.000s
Reference 		Unknown Unknown 0 79 XAPg LongFast 2025-12-11 14:42:14 UTC Current
No other receptions found within ±2 seconds
1

Total Receptions

1

Unique Gateways